A referral comes into the local Children’s Protective Services in regards to a female infant. The concerns raised by the informant include a lack of nutrition and improper supervision. Neighbors hear the baby cry at all hours of the night for long lengths of time. The parents leave the home before dark and do not seem to reappear until dawn the next day. Groceries brought into the home are noticeably snack foods and alcohol. The social worker responding will need to complete what kind of assessment?